Abstract : Blast resistant design of structures are very popular since past two decades. Engineering structures world-wide have a threat from terrorist attack. The stud walls can be designed for giving ample warning in terms of plastic deformation to in order to safeguard the buildings. In the present study energy dissipation of blast wave is focused. The rate of change of strain with respect to time was determined. The time period of positive blast wave is very infinitesimal, and it collapses the structure drastically. Cold-formed steel stud wall is popular in showing resistant against blasts. Two different cross section of stud were used. Influence of various parameters such as thickness, material property and mass of explosives were discussed in detail. The utilisation of channel section was briefly discussed. Theoretical equation was taken in to account. Reflected pressure is more than peak over pressure in most of the cases. Post peak behaviour of blast gives better idea to find measures to enhance the structural resistivity.